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feat: speed up decoding dns questions when processing incoming data #1168

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merged 2 commits into from
May 1, 2023
Merged

feat: speed up decoding dns questions when processing incoming data #1168

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d476dd6
feat: speed up decoding dns questions
bdraco May 1, 2023
e0924db
feat: speed up decoding dns questions
bdraco May 1, 2023
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5 changes: 3 additions & 2 deletions src/zeroconf/_protocol/incoming.pxd
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@ from .._dns cimport (
DNSHinfo,
DNSNsec,
DNSPointer,
DNSQuestion,
DNSRecord,
DNSService,
DNSText,
Expand All @@ -48,11 +49,11 @@ cdef class DNSIncoming:

cdef bint _did_read_others
cdef public unsigned int flags
cdef object offset
cdef cython.uint offset
cdef public bytes data
cdef unsigned int _data_len
cdef public cython.dict name_cache
cdef public object questions
cdef public cython.list questions
cdef object _answers
cdef public object id
cdef public cython.uint num_questions
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9 changes: 6 additions & 3 deletions src/zeroconf/_protocol/incoming.py
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Expand Up @@ -211,9 +211,12 @@ def _read_header(self) -> None:

def _read_questions(self) -> None:
"""Reads questions section of packet"""
self.questions = [
DNSQuestion(self._read_name(), *self._unpack(UNPACK_HH, 4)) for _ in range(self.num_questions)
]
for _ in range(self.num_questions):
name = self._read_name()
type_, class_ = UNPACK_HH(self.data, self.offset)
self.offset += 4
question = DNSQuestion(name, type_, class_)
self.questions.append(question)

def _read_character_string(self) -> bytes:
"""Reads a character string from the packet"""
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